Influence of Spin-Dependent Level Densities and Gamma-Ray Competition in the Decay of Highly Excited Nuclei

1967 ◽  
Vol 157 (4) ◽  
pp. 860-870 ◽  
Author(s):  
Marshall Blann
Keyword(s):  
Gamma Ray ◽  
Level Densities ◽  
Excited Nuclei

scholarly journals Nuclear level densities and gamma-ray strength functions of145,149,151Nd isotopes

2016 ◽  
Vol 766 ◽  
pp. 012027
Author(s):  
K O Ay ◽  
M Ozgur ◽  
E Algin ◽  
M Guttormsen ◽  
F L Bello Garrote ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Nuclear Level ◽  
Level Densities ◽  
Strength Functions

Neutron-capture gamma-ray spectra from even-even excited nuclei with rotational levels

1959 ◽  
Vol 9 (1-4) ◽  
pp. 50-68
Author(s):  
L.V. Groshev ◽  
A.M. Demidov ◽  
V.N. Lutsenko ◽  
V.I. Pelekhov
Keyword(s):  
Neutron Capture ◽  
Gamma Ray ◽  
Excited Nuclei

scholarly journals Level densities and gamma-ray strength functions in 170,171,172-Yb

2004 ◽  
Author(s):  
U Agvaanluvsan ◽  
A Schiller ◽  
J Becker ◽  
L Bernstein ◽  
P Garrett ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Level Densities ◽  
Strength Functions

Gamma-Ray Yields from Nuclear Reactions and Level Densities of Deformed Nuclei

1966 ◽  
Vol 151 (3) ◽  
pp. 992-999 ◽  
Author(s):  
J. O. Rasmussen ◽  
T. T. Sugihara
Keyword(s):  
Gamma Ray ◽  
Nuclear Reactions ◽  
Deformed Nuclei ◽  
Level Densities

scholarly journals Improved STEREO simulation with a new gamma ray spectrum of excited gadolinium isotopes using FIFRELIN

2019 ◽  
Vol 55 (10) ◽  
Author(s):  
H. Almazán ◽  
L. Bernard ◽  
A. Blanchet ◽  
A. Bonhomme ◽  
C. Buck ◽  
...  
Keyword(s):  
Gamma Rays ◽  
Cross Sections ◽  
Neutron Capture ◽  
Gamma Ray ◽  
Detection Efficiency ◽  
Liquid Scintillator ◽  
Calibration Source ◽  
Active Volume ◽  
Capture Event ◽  
Excited Nuclei

Abstract. The STEREO experiment measures the electron antineutrino spectrum emitted in a research reactor using the inverse beta decay reaction on H nuclei in a gadolinium loaded liquid scintillator. The detection is based on a signal coincidence of a prompt positron and a delayed neutron capture event. The simulated response of the neutron capture on gadolinium is crucial for the comparison with data, in particular in the case of the detection efficiency. Among all stable isotopes, 155Gd and 157Gd have the highest cross sections for thermal neutron capture. The excited nuclei after the neutron capture emit gamma rays with a total energy of about 8MeV. The complex level schemes of 156Gd and 158Gd are a challenge for the modeling and prediction of the deexcitation spectrum, especially for compact detectors where gamma rays can escape the active volume. With a new description of the Gd (n,$ \gamma$γ) cascades obtained using the FIFRELIN code, the agreement between simulation and measurements with a neutron calibration source was significantly improved in the STEREO experiment. A database of ten millions of deexcitation cascades for each isotope has been generated and is now available for the user.

Temperatures, barriers, and level densities of highly excited nuclei with A ≈ 160

1986 ◽  
Vol 176 (1-2) ◽  
pp. 20-25 ◽  
Author(s):  
G. Nebbia ◽  
K. Hagel ◽  
D. Fabris ◽  
Z. Majka ◽  
J.B. Natowitz ◽  
...  
Keyword(s):  
Level Densities ◽  
Excited Nuclei

Neutron-capture gamma-ray spectra from even-even excited nuclei with rotational levels

1959 ◽  
Vol 9 (1-4) ◽  
pp. 50-68
Author(s):  
L.V. Groshev ◽  
A.M. Demidov ◽  
V.N. Lutsenko ◽  
V.I. Pelekhov
Keyword(s):  
Neutron Capture ◽  
Gamma Ray ◽  
Excited Nuclei

Neutron evaporation and level densities in excited nuclei

1959 ◽  
Vol 13 (1) ◽  
pp. 32-52 ◽  
Author(s):  
K.J. Le Couteur ◽  
D.W. Lang
Keyword(s):  
Level Densities ◽  
Excited Nuclei ◽  
Neutron Evaporation
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